Fuel-feed device for gasolene or vapor engines



No. 748,883. PATENTED JAN 5, 1904.

. E. PROUTY. FUEL FEED- DEVICE FOR GASOLBNE 0R VAPOR'ENGINE'S.

APPLIUATION FILED MAY 11, 1901.

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UNITED STATES Patented January 5, 1904.

PATENT OFFICE.

ENOCH PROUTY, OF CHICAGO, ILLINOIS.

SPECIFICATION formingpart of Letters Patent No. 748,883, dated January 5, 1904 Serial No. 59,744. (No model.)

A further object of the invention is to pro vide a liquid-fuel pump with special mechanism for operating the pump and with a shaft operated by the main shaft of an engine and having a cam to work said mechanism.

With these and other objects in view the invention consists in a liquid-fuel-feed pump of peculiar construction and in the novel construction and arrangement of-parts for imparting motion from the main driving-shaft of an engine to the pump.

In the accompanying drawings, forming part of this application, Figure 1 is a front elevation of an engine provided with my invention. pump. Fig. 3 is a detail section of the governor-wheel and the Wheel-block, showing the lift-lever engaged by the shaft-cam. Fig. 4: is a similar view taken at right angles to that of Fig. 3. Fig. 5 is a section on line X X, Fig. 3. z

The same numeral references denote the same parts throughout the several views of the drawings.

The vapor or gasolene engine employed has an ordinary cylinder 1, base 2, main shaft 3, and fly or balance wheel 4. The pump is positioned ver ically, as usual, on the front of the engine and has an ingress-pipe 5 and an egress-pipe 6 leading into a mixing-chamber 7. A lug 8 is formed at the top of the pumpcylinder 9 for an adjustable post 10, which is operated to limit or vary the drop or return stroke of the pump-plunger 11, such stroke being given by a spring 12, attached to the pump-base and to an arm 13, depending from the flanged head 14 of the plunger through a guide 14, formed by an enlarge- Fig. 2 is a detail elevation of the ment opposite the lug 8. The arm 13 and its spring 12, together with a finger 15, pivoted to the flanged head 14, and having lower end sections 16 and 17, the latter being shorter than the former, so as to form a shoulder 18, constitute the mechanism for working the pump-plunger. A set-bolt 18 projects from the arm 13 through the finger l5 and is provided with a suitable nut to limit the outward movement of the finger under pressure of a spring 19.

The mechanism for operating the finger 14 .to raise the plunger consists of a shaft '20,

having a cam 21 and a governor-wheel 22, geared with a pinion on the main shaft 3, a lift-lever 23 extending over the shaft20-to be engaged by the cam, and having an arm 24, pivoted to a rod 25, slidable in a socket 26 and controlled by a spring 27, a projection 28 from the lever 23 extending under the section 16, so as to engage it when said lever is raised by the cam, and a block 29, slidably secured on the elongated hub of the wheel 22 and having a notch or recess 30 in its face adjacent the wheel, said notch being engaged by a beveled or pointed pin 31 on the wheel 22 to slide the block and have the latter push the lift-lever out of engagement with the fingersections 16, the lift-lever being pushed out by the spring 27 to return it under the said finger-sections 16. The block is connected to weighted levers 32, pivoted to the governorwheel, so that a speedy revolution of the wheel will produce a centrifugal movement of the Weighted levers. When the speed of the engine becomes too great, the block is rotated slightly with reference to the governorwheel by centrifugal action of the weighted levers. The block slides away from the Wheel upon the wheel-hub by the action of the pin 31 in the block-notch and slides the liftlever, so that its projection 28 will be moved.

out of engagement with the finger-section l6, and thereby stop the pump. When the speed of the engine is reduced, the action of the spring 27 permits the block to resume its position against the governor-wheel and places the projection 28 under the section 16 against the section 17. It will be understood that the movement of the block is not enough to have it leave the pin entirely, but only sufficiently to dislodge the lever projection from under the finger-section 16, that the section 17 prevents the said projection in its return movement from passing beyond the section 16, that the path of oscillation of the lift-lever is normally in line with the finger-section 16, and that averylimited movement of the liftlever will throw it out of such line and back again, so that the supply of fuel is automatically controlled by the working of the engine.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the pump, and a driven shaft having a cam, of the lift-lever engaged by the cam, a finger depending from the pump-plunger and operated by the liftlever to raise the plunger, and a spring-controlled arm attached to and depending from the plunger to retract it.

2. The combination, with the pump, the pump-plunger having a flanged head, and the shaft having a cam, of a lift-lever operated by the cam, a finger attached to the pumpplunger and having depending sections operated by said lever to lift the plunger, and a spring-controlled arm depending from the flanged head to retract the plunger.

3. In a gasolene or vapor engine, the combination of a feed-pump, the plunger, the cammed shaft, a lift operated by the cam, a finger carried by the pump-plunger and having a shoulder engaged by the lift to raise the plunger, an arm depending from the plunger, and a spring on the arm to retract the plunger.

4. The combination, with a feed-pump, the pump-plunger havinga flanged head a finger hung from the pump-plunger, and a springcontrolled arm to retract the plunger, of a shaft having a cam, a lift operated by the cam and engage in the finger to give the plunger its upward stroke, and a post on the pump and engaging said head to limit the downward stroke of the plunger.

5. The combination, with a pump, the plunger, a driving-shaft having a pinion, a governor-wheel meshing with the pinion and ha'ving a pin, a block on the wheel-hub operated by said pin, and a cam-shaft upon which said wheel is mounted, of a finger attached to and depending from the pump-plunger, and a liftlever operated by the cam and by said block, for the purpose set forth.

6. The combination, with a pump, a camshaft, a governor-wheel mounted on the shaft to drive it and having a hub-pin, of a finger attached to the pump-plunger, a lift-lever operated vertically by the cam to work the finger, a block on the hub-wheel and operated by the pin to slide the lift-lever in a lateral direction, and a spring to return the lift-lever so as to control the action of the pump.

7. In a gasolene-engine, the combination, with a gasolene feed-pump and its plunger, of means to operate the pump and to control its feed to the engine, consisting of a camshaft, a spring-controlled lift-lever engaged by the cam to impart a vertical movement to the plunger, a governor-wheel mounted on the shaft and having a pin, a block on the wheel-hub and operated by the pin to slide the lever, a finger on the pump-plunger engaged by the lever to raise the plunger, a spring-controlled arm on the plunger to retract it, and an adjustable post on the pump to vary such retraction.

8. The combination, with the pump, a finger pivoted to the plunger-head and depending therefrom, a spring-controlled arm depending from the plunger to retract the latter, and means to control the pivot movement of the finger, of a lift-lever oscillated at right angles to the finger to raise it and the plunger, and a shaft having a cam to oscillate the lift-lever.

9. The combination, with a pump having a finger depending from the pump-plunger, and a spring-controlled arm on the plungerto retract the latter, of a cam-shaft, a governorwheel mounted thereon having a pin, a liftlever oscillated by the cam to raise the finger and lift the plunger, a block slidable on the wheel-hub and having a notch engaged by the pin to slide the block and move the lift lever out of action with the finger, and a spring to return the lift-lever.

In witness whereof I hereby attach my signature in the presence of two witnesses.

ENOOH PROUTY.

Witnesses:

R. S. CLEMAGE, J. MCROBERTS. 

